Utilisation of High-Energy Heat Sources in Magnesium Alloy Surface Layer Treatment

Archives of Metallurgy and Materials

J. Iwaszko¹  M. Szafarska¹  I. Łegowik¹  K. Kudła² 

[1]Czestochowa University of Technology, Faculty of Materials Processing Technology and Applied Physics, Institute of Materials Engineering, 42-200 Czestochowa, 19 Armii Krajowej av., Poland

[2]Czestochowa University of Technology, Faculty of Mechanical Engineering and Computer Science, Institute of Welding, 42-200 Czestochowa, 21 Armii Krajowej av., Poland

关键词: Keywords : Surface layer modification;    Magnesium alloys;   

DOI  :  10.2478/amm-2013-0047

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

The main aim of the study was the evaluation of magnesium alloy surface treatment effectiveness using high-energy heat sources, i.e. a Yb-YAG Disk Laser and the GTAW method. The AZ91 and AM60 commercial magnesium alloys were subject to surface layer modification. Because of the physicochemical properties of the materials studied in case of the GTAW method, it was necessary to provide the welding stand with additional equipment. A novel two-torch set with torches operating in tandem was developed within the experiment. The effectiveness of specimen remelting using a laser and the GTAW method was verified based on macro- and microscopic examinations as well as in X-ray phase analysis and hardness measurements. In addition, the remelting parameters were optimised. The proposed treatment methodology enabled the achieving of the intended result and effective modification of a magnesium alloy surface layer.

【 授权许可】

Unknown